Home Postcode finder QLD South Stradbroke South Stradbroke postcode QLD South Stradbroke is a locality in Queensland covered by postcode 4216. Postcode 4216 State or territory Queensland (QLD) Region Gold Coast Add a free South Stradbroke business listing Be the first listing in South Stradbroke Common questionsWhat is the postcode for South Stradbroke?South Stradbroke, QLD has the postcode 4216.What state is South Stradbroke in?South Stradbroke is in Queensland (QLD).Does postcode 4216 cover more than one suburb?Yes. Postcode 4216 covers 6 localities, so the postcode alone does not identify South Stradbroke. Browse other postcodes in Queensland, or widen the search to every Australian postcode.